Introduction
In the <VIS 2128: Spatial Analysis> course at the Harvard Graduate School of Design, I had great privilege to learn a plurality of geographical analysis tools.
In this portfolio, I would like to assemble to demonstrate the skills in this class using RMarkdown and RStudio. I extensively the downcute theme, which is available as I installed the rmdformats package. The themes in the rmdformats have a table of contents that only includes level-one headings.
Other themes in the rmdformats package are material, html_clean, html_docco, readthedown, and robobook, but due to the scope of the project, level-one headings seem to suffice.
In this portfolio, I would display each of the following skills:
- Displaying multiple vector layers on the same map
- Georeferencing a raster image
- Calculating and displaying relationships among point and polygon layers based on distance
- Calculating and displaying accessibility, based on travel time
- Displaying data on an interactive map
All in all, please refer to the table of contents below - for the details of my portfolio.
Table of Contents
I. Presentation of Multiple Vector Layers
II. Concoction of an Old Map and Shape Files
III. Display of relations among point and polygon layers
IV. Introduction to Isochrones
V. Interactive Map
I. Presentation of Multiple Vector Layers
In Assignment 1, we explored map tiles and data by OpenStreetMap. Specifically, we created a pamphlet for the bike tourists at Washington DC.
By juxtaposing the tree canopy and the bike routes as well as the historic landmarks in the capital of the United States, the end-user can capture great value in understanding the geography in the area.
This static map demonstrates the following skills: * Displaying a plural vector layers on a map
II. Concoction of an Old Map and Shape Files
In Assignment 2, I visited Harvard Map Collective and located a century-old map of Honolulu, Hawaii. In this project, I scanned the big map of Oahu Island and georeferenced the map using ArcGis.
The map clearly shows the tourism development that has been implemented over the past 100 years in Oahu Island. There used to be only two hotels back then, but currently there exist over 60 (Retrieved in Sep. 2021). Meanwhile, the coastal lines have not changed drammatically.
This map demonstrates the following skills: * Georeferencing a raster map with points, lines, and polygons.